She taught me how to love [Killua x reader]

"Dad, I tell you, I don't need a mentor!"
Silva sighed, "Killua, have you seen your grades? I mean, you got a D in English, that's one of the easiest subject and yet you still failed."
"Then I'll study harder!"
"You've already said that like 5 times this month and you still haven't improve."
"But Dad-"
Killua was cut off by a knock on Silva's door.
"Come in." Silva said.
A butler approached to his master and bowed, "Young master's teacher has arrived."
"See?" Silva raised an eyebrow, "now go to your study room at once."
Killua rolled his eyes and groaned, "Fine.."
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WARNING: So.much.drama.
(Welcome to cringe kingdom)